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Finding the Fourth Proportional to 589.53, 884.12 and 281.22

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Solution

The fourth proportional to 589.53, 884.12 and 281.22 is: 421.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    589.53 : 884.12 = 281.22 : x
  2. Step 2: Convert to fraction form
    589.53/884.12 = 281.22/x
  3. Step 3: Cross multiply
    589.53x = 884.12 × 281.22
  4. Step 4: Simplify right side
    589.53x = 248,630.82
  5. Step 5: Solve for x
    x = 248,630.82/589.53
  6. Step 6: Final answer
    x = 421.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.